Rapidity is the essence of war.

It is more important to outhink your enemy, than to outfight him

Wait by the river long enough and the body of your enemy will float by you.

Secret operations are essential in war; upon them the army relies to make its every move.

The enemy's spies who have come to spy on us must be sought out, tempted with bribes, led away and comfortably housed. Thus they will become double agents and available for our service. It is through the information brought by the double agent that we are able to acquire and employ local and inward spies. It is owing to his information, again, that we can cause the doomed spy to carry false tidings to the enemy.

Attack is the secret of defense; defense is the planning of an attack.

Begin by seizing something which your opponent holds dear; then he will be amenable to your will.